Organic Solvent

We have ready stock of Dimethyl Sulphoxide - Hubei Xingfa, China

Dimethyl sulfoxide (DMSO) is a clear hygroscopic liquid; melting point 18 C; boiling point 189 C. It is has little odor. It smells garlic like odor due to the impurity of dimethyl sulfide. It is miscible with water; readily soluble in almost all organic solvents such as alcohols, esters, ketones, chlorinated solvents and aromatic hydrocarbons. Dimethyl sulfoxide is produced as a by-product of wood pulping.

DMSO is a highly dipolar organic liquid, that is used as a powerful solvent in organic synthesis and industrial applications including paint stripper and coating remover as the alternative to chlorinated solvents and nitroalkanes. DMSO's high polarity solvates polymeric materials by itself or in combination with other solvents. Its application is extended as a chemical reactant undergoing a chemical change. DMSO proved to be an excellent reaction solvent for S_N2 alkylation.

DMSO is used in oxidation reactions which a primary or secondary alcohol is oxidized to the corresponding aldehyde or ketone (Swern oxidation). Sulfoxonium ion reacts with sodium hydride to form sulfur ylide which converts carbonyl to epoxide (Johnson-Corey-Chaykovsky reaction). It is widely used in the synthesis of pharmaceuticals, biocides and pesticides insecticides as a reactant, reaction solvent, in combinations of these applications. Some examples are diphenyl ether compounds, imidazolinone compounds, and pyrethroids.

The catalysts in hydrocracking, hydrodenitrification, hydrodesulfurization and reforming processes are used in oxide forms, which must be converted to the active sulfide form during the start-up to prevent the reduction of the catalysts to their base material by heat. The sulfur sources include alkyl mercaptans (methyl mercaptan, ethyl mercaptan, butyl mercaptan), dimethyl sulfide, dimethyl sulfoxide, dimethyl disulfide, and tert-nolyl polysulfide.

 

 

Nitromethane is an organic compound with the chemical formula CH
3NO
2. It is the simplest organic nitro compound. It is a polar liquid commonly used as a solvent in a variety of industrial applications such as in extractions, as a reaction medium, and as a cleaning solvent. As an intermediate in organic synthesis, it is used widely in the manufacture of pharmaceuticals, pesticides, explosives, fibers, and coatings.^[7] Nitromethane is used as a fuel additive in various motorsports and hobbies, e.g. Top Fuel drag racing and miniature internal combustion engines in radio control, control lineand free flight model aircraft.

Diisopropyl Ether

Applications:

• Industrial Use: Many types of industries use Di isopropyl ether. It is a component of many varnishes, paints and lacquers, for example. Chemical manufacturers also use it to synthesize and analyze chemicals. Both industrial and research chemists use Di isopropyl ether. The fuel industry uses Di isopropyl ether too. Di isopropyl ether is a cheaper alternative to ethyl and petroleum in fat extractions. It is also convenient and time-saving.

 

• Solvent: The most common use of Di isopropyl ether is as a solvent. Oil based substances dissolve in it, so it is the base of many waxes, dyes, paints and resins. It also removes oily substances like varnish. Ethers are usually good solvents because they are not very reactive. This means that substances dissolved in Di isopropyl ether are unlikely to change.

 

• Use in Chromatography: Chemists often use Di isopropyl ether as a solvent in chromatography (a process in which a chemical mixture carried by a liquid or gas is separated into components as a result of differential distribution of the solutes as they flow around or over a stationary liquid or solid phase). In liquid chromatography, the substance undergoing analysis travels through a liquid. Di isopropyl ether Di isopropyl ether is often the solvent through which the substance moves.

Productions:

• In diisopropyl ether production process the distillation step for the separation of aqueous IPA recovered from the DIPE extraction operations is modified to avoid carrying out the distillation under conditions that yield IPA-water azeotrope. The overhead and bottom streams from an aqueous IPA fractionation process operated under off-azeotrope conditions in DIPE production are recycled, respectively, to the DIPE reactor and extractor operations.

 

• Recycling the water and IPA overhead mixture eliminates the requirement for adding fresh water to the DIPE reactor. Returning the water and IPA bottom stream to the extractor reduces the requirement for distilled water addition to the extraction step. A less complex and costly aqueous IPA separation process results.

Attention:

• Flammable materials should be stored in a separate safety storage cabinet or room. Keep away from heat. Keep away from sources of ignition. Keep container tightly closed. Keep in a cool, well-ventilated place. Ground all equipment containing material. A refrigerated room would be preferable for materials with a flash point lower than 37.8°C (100°F).
• Keep away from heat. Keep away from sources of ignition. Ground all equipment containing material. Do not ingest. Do not breathe gas/fumes/ vapour/spray. In case of insufficient ventilation, wear suitable respiratory equipment If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes.

Physical and Chemical Properties:

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